189441224 has 64 divisors (see below), whose sum is σ = 423187200. Its totient is φ = 77785344.

The previous prime is 189441211. The next prime is 189441233. The reversal of 189441224 is 422144981.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254597 + ... + 255339.

It is an arithmetic number, because the mean of its divisors is an integer number (6612300).

Almost surely, 2^189441224 is an apocalyptic number.

189441224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189441224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211593600).

189441224 is an abundant number, since it is smaller than the sum of its proper divisors (233745976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189441224 is a wasteful number, since it uses less digits than its factorization.

189441224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942 (or 938 counting only the distinct ones).

The product of its digits is 18432, while the sum is 35.

The square root of 189441224 is about 13763.7648919182. The cubic root of 189441224 is about 574.3255850945.

The spelling of 189441224 in words is "one hundred eighty-nine million, four hundred forty-one thousand, two hundred twenty-four".